A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.
NSN 7035-01-383-9357
NSN 5985-01-413-8307
NSN 6220-00-931-8837
NSN 5990-01-414-7618
NSN 5996-00-598-4839
NSN 6145-00-438-8979
NSN 6645-00-451-6462
NSN 5996-01-017-1309
NSN 5930-00-404-3505
NSN 6320-01-558-8844
NSN 4140-00-787-4444
NSN 6240-00-063-0852